A Dou SHIB Quiz (7), A Dou had 7 sons and 2 daughters (one daughter married Zhuge Liang's son and the other married Guan Yu's grandson), among the 7 sons, one son committed suicide to honor the country, and is thus praised by later generations. May I ask who he is? Third son Liu Cong / Fifth son Liu Chen / Seventh son Liu Qu.
